Grass casting shadow even when cast shadow turned off

[Sun_dress]

Grass foliage casting shadows, when I get close to it, even if cast shadows turned off. These shadows appear only if grass is in shadow. I think it may be because of how lumen works with that kind of mesh, but idk.

This command decreased intensity of shadows by a lot, but not completely.
r.Lumen.ScreenProbeGather.ScreenTraces.HZBTraversal 0

[baobao4435]

Those are not shadows,they are ambient occlusion stuffs.i don’t know how to turn off it,though,I’m not familiar with it.

but it looks good. I would keep it.

[Sun_dress]

Changing grass shading model to Two Sided Foliage solved the problem.